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Strengths and weaknesses of the comparison of our brains to a computer
In the cognitive approach, there are two main assumptions. The first is information processing. This involved the pattern
of encoding, storing and retrieving data being linear. The second is the computer analogy. This assumes that the brain
functions similarly to a computer. As with ICT, with the Input > Process > Output system, human information processing
assumes a similar system:
INPUT
PROCESSING
OUTPUT
STORAGE
SENSES
COGNITION
BEHAVIOUR
MEMORY
However, there are limitations to the assumption. Here are some of the differences between the two:
Computer
A computer receives all input (e.g. via a keyboard)
A computer can do the same calculations repeatedly
A computer cannot lose information (unless data
becomes corrupt or there is damaged loss of data)
You can choose to delete certain information from a
computer permanently
A computer is emotionless
A computer only knows as much as the information
which has been input
Human brain
The brain only pays attention to a very small amount
of information input
The brain can only perform certain calculations at
different times and speeds
The brain can easily misplace information and
experience difficulty recalling information
You cannot push something unpleasant deliberately
from your mind
Emotions have a strong impact on the way our minds
function
The brain can try to piece together memories and fill
in the gaps
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